论文部分内容阅读
试验结果表明,在土壤供钾能力弱的川台地黄绵土施用钾肥,对玉米表现出明显增产效果。增产幅度为2.8—27.2％。
The results showed that applying potassium fertilizer to loessial soil in Chuan-Taihuang loess which had a weak ability of potassium supply to the soil showed a remarkable yield-increasing effect on maize. Increase production rate of 2.8-27.2%.